#pragma once

#include <iostream>
#include <string>
#include <sstream>
#include <memory>
#include <jsoncpp/json/json.h>

const std::string Sep = "\r\n";

bool Encode(std::string &message)
{
    if (message.size() == 0)
    {
        return false;
    }
    std::string package = std::to_string(message.size()) + Sep + message + Sep;
    message = package;

    return true;
}
// len\r\n{json}\r\n
// 123\r\n{json}\r\n -> {json}
// 123\r\n
// 123\r\n{json
// 123\r\n{json}\r
// 123\r\n{json}\r\n123\r\n{json}\r\n123\r\n{js
bool Decode(std::string &package, std::string *content)
{
    auto pos = package.find(Sep);
    if (pos == std::string::npos)
    {
        return false;
    }
    std::string content_length_str = package.substr(0, pos);
    int content_length = std::stoi(content_length_str);
    int full_length = content_length + content_length_str.size() + Sep.size() * 2;

    if (package.size() < full_length)
    {
        return false;
    }
    *content = package.substr(pos + Sep.size(), content_length);
    package.erase(0, full_length);

    return true;
}

class Request
{
public:
    Request()
        : _x(0), _y(0), _oper(0)
    {
    }
    Request(int x, int y, char oper)
        : _x(x), _y(y), _oper(oper)
    {
    }
    bool Serialize(std::string &out_string)
    {
        Json::Value root;
        root["x"] = _x;
        root["y"] = _y;
        root["oper"] = _oper;
        Json::StreamWriterBuilder wb;
        std::unique_ptr<Json::StreamWriter> w(wb.newStreamWriter());
        std::stringstream ss;
        w->write(root, &ss);
        out_string = ss.str();
        return true;
    }

    bool Deserialize(std::string &in_string)
    {

        Json::Value root;
        Json::Reader reader;
        bool parsingSuccessful = reader.parse(in_string, root);
        if (!parsingSuccessful)
        {
            std::cout << "Failed to parse JSON: " << reader.getFormattedErrorMessages() << std::endl;
            return false;
        }
        _x = root["x"].asInt();
        _y = root["y"].asInt();
        _oper = root["oper"].asInt();

        return true;
    }

    int X() const
    {
        return _x;
    }
    int Y() const
    {
        return _y;
    }
    char Oper() const
    {
        return _oper;
    }
    ~Request()
    {
    }

private:
    int _x;
    int _y;
    char _oper;
};

class Response
{
public:
    Response() : _result(0), _code(0)
    {
    }
    Response(int result, int code)
    {
        _result = result;
        _code = code;
    }
    bool Serialize(std::string &out_string)
    {
        Json::Value root;
        root["result"] = _result;
        root["code"] = _code;

        Json::StreamWriterBuilder wb;
        std::unique_ptr<Json::StreamWriter> w(wb.newStreamWriter());
        std::stringstream ss;
        w->write(root, &ss);
        out_string = ss.str();
        return true;
    }
    bool Deserialize(std::string &in_string)
    {
        Json::Value root;
        Json::Reader reader;
        bool parsingSuccessful = reader.parse(in_string, root);
        if (!parsingSuccessful)
        {
            std::cout << "Failed to parse JSON: " << reader.getFormattedErrorMessages() << std::endl;
            return false;
        }

        _result = root["result"].asInt();
        _code = root["code"].asInt();

        return true;
    }
    int Result() const
    {
        return _result;
    }
    int Code() const
    {
        return _code;
    }
    void Setresult(int result)
    {
        _result = result;
    }
    void Setcode(int code)
    {
        _code = code;
    }

private:
    int _result;
    int _code;
};